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2
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Zhong W, Xie M, Li Y, Yan H. Investigation into the reactivity of 16-electron complexes Cp#Co(S2C2B10H10) (Cp# = Cp, Cp*) towards methyl diazoacetate and toluenesulphonyl azide. RSC Adv 2014. [DOI: 10.1039/c4ra13017k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A three-component reaction of the 16-electron half-sandwich complex Cp*Co(S2C2B10H10) (2) with both methyl diazoacetate (MDA) and toluenesulphonyl azide (TsN3) led to the formation of complexes 3 and 4, while a two-component reaction of complex 2 with MDA afforded products 5–7.
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Affiliation(s)
- Wei Zhong
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing, China
- College of Biological, Chemical Sciences and Engineering
| | - Mingshi Xie
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing, China
| | - Yizhi Li
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing, China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing, China
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4
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Zhong W, Yang Q, Shang Y, Liu G, Zhao H, Li Y, Yan H. Synthesis and Reactivity of the Imido-Bridged Metallothiocarboranes CpCo(S2C2B10H10)(NSO2R). Organometallics 2012. [DOI: 10.1021/om300735d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Zhong
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing University,
Nanjing, Jiangsu 210093, P. R. China
| | - Qiwu Yang
- Department of Chemistry, School
of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Yi Shang
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing University,
Nanjing, Jiangsu 210093, P. R. China
| | - Guifeng Liu
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing University,
Nanjing, Jiangsu 210093, P. R. China
| | - Haitao Zhao
- Department of Chemistry, School
of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Yizhi Li
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing University,
Nanjing, Jiangsu 210093, P. R. China
| | - Hong Yan
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing University,
Nanjing, Jiangsu 210093, P. R. China
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9
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Suresh CH. Molecular Electrostatic Potential Approach to Determining the Steric Effect of Phosphine Ligands in Organometallic Chemistry. Inorg Chem 2006; 45:4982-6. [PMID: 16780319 DOI: 10.1021/ic051959w] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A two-layer ONIOM(B3LYP/6-31G(d,p):UFF) quantum mechanics (QM)-molecular mechanics (MM) optimization of PR3 ligands, where the QM layer is always constructed as PH3, followed by molecular electrostatic potential (MESP) analysis of the QM layer is suggested as a simple and effective method for evaluating the steric effect of PR3 ligands. The subtle variations in the electron distribution that arise as a result of the steric bulkiness as well as the conformational changes in the substituent groups is well reflected in the value of the MESP minimum (Vmin) located in the QM region. In general, a sterically bulky group has always shown a more negative Vmin than a sterically less bulky group. The difference between the Vmin value of free PH3 and the Vmin value at the QM region of PR3 is used as a measure of the steric effect of the PR3 ligand. This value, designated as MESPsteric, showed a good linear correlation with the cone angle values as well as the average of the intervalence HPH angles found in the QM layer. Further, the difference between the Vmin value at the QM region of PR3 (an indicator of the steric effect) and the Vmin value of the completely optimized PR3 ligand (an indicator of the combined effect of steric and electronic effects) showed a good linear correlation with the Hammett Sigmasigmap constants, which further confirmed the present approach to understanding the steric effect separately from the electronic effect.
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Affiliation(s)
- Cherumuttathu H Suresh
- Computational Modeling and Simulation Section, Regional Research Laboratory, Council of Scientific and Industrial Research (CSIR), Trivandrum 695 019, India.
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10
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Van Droogenbroeck J, Van Alsenoy C, Aucott SM, Woollins JD, Hunter AD, Blockhuys F. Structure, Bonding, and Reactivity of the Organometallic 1,3,2,4-Dithiadiazole Complex CpCoS2N2. Organometallics 2005. [DOI: 10.1021/om0494059] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joris Van Droogenbroeck
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium, Department of Chemistry, University of St. Andrews, St. Andrews KY16 9ST, United Kingdom, and Department of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663
| | - Christian Van Alsenoy
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium, Department of Chemistry, University of St. Andrews, St. Andrews KY16 9ST, United Kingdom, and Department of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663
| | - Stephen M. Aucott
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium, Department of Chemistry, University of St. Andrews, St. Andrews KY16 9ST, United Kingdom, and Department of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663
| | - J. Derek Woollins
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium, Department of Chemistry, University of St. Andrews, St. Andrews KY16 9ST, United Kingdom, and Department of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663
| | - Allen D. Hunter
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium, Department of Chemistry, University of St. Andrews, St. Andrews KY16 9ST, United Kingdom, and Department of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663
| | - Frank Blockhuys
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium, Department of Chemistry, University of St. Andrews, St. Andrews KY16 9ST, United Kingdom, and Department of Chemistry, Youngstown State University, One University Plaza, Youngstown, Ohio 44555-3663
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